[PATCH 02/10] drm/etnaviv: add internal representation of readback

[Christian Gmeiner]

Signed-off-by: Christian Gmeiner <christian.gmeiner at gmail.com>
---
 drivers/gpu/drm/etnaviv/etnaviv_gpu.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h 
b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
index 73c278d..6527ceb 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
@@ -87,6 +87,12 @@ struct etnaviv_chip_identity {
        u8 varyings_count;
 };

+struct etnaviv_readback {
+       u32 *bo_vma;
+       u32 offset;
+       u32 reg;
+};
+
 struct etnaviv_event {
        bool used;
        struct fence *fence;
@@ -168,6 +174,9 @@ struct etnaviv_cmdbuf {
        u32 exec_state;
        /* per GPU in-flight list */
        struct list_head node;
+       /* readback's attached to this command buffer */
+       unsigned int nr_readbacks;
+       struct etnaviv_readback *readbacks;
        /* BOs attached to this command buffer */
        unsigned int nr_bos;
        struct etnaviv_vram_mapping *bo_map[0];
-- 
2.9.3